<font color='black' size='2' face='Arial, Helvetica, sans-serif'><FONT face="Arial, Helvetica, sans-serif"></FONT><br> <div style="FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt"> <BLOCKQUOTE style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 3px"> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt">The glue was probably just fine. It’s pretty rare to find glue that is bad from the supplier unless it is past its shelf life. And in a factory that doesn’t really happen.</SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt"> </SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt">Most likely in the case of Baldwin hammers is either too much or too little heat on the side cauls, too much or too little moisture in the felt, not enough glue applied or—and this happened more often than anyone wanted to admit—glue applied just before the break (or lunch) bell rings and the worker goes off for a 15 or 30 minute break before sliding the layup in the press.<br> <br> </SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt">ddf    </SPAN></div> </BLOCKQUOTE></div> <div>It wasn't until I got to Hawaii that I started seeing a lot of unglued Baldwin hammers. Is it that Baldwin hammers from a certain era indicate a problem with the manufacturing process? Or is it the constant 70% - 80% humidity here in Hawaii that's the problem?</div> <div> </div> <div>Wim </div> <div> </div> <div><br> <br>  </div> <div style="FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt">-----Original Message-----<br> From: Delwin D Fandrich <del@fandrichpiano.com><br> To: pianotech <pianotech@ptg.org><br> Sent: Mon, Feb 13, 2012 9:01 pm<br> Subject: Re: [pianotech] re-gluing loose hammer felt<br> <br> <div id=AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865> <STYLE>#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 td{color: black;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} @font-face {font-family:"Comic Sans MS"; panose-1:3 15 7 2 3 3 2 2 2 4;} @font-face {font-family:Consolas; panose-1:2 11 6 9 2 2 4 3 2 4;} @font-face {font-family:Georgia; panose-1:2 4 5 2 5 4 5 2 3 3;} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 p.MsoNormal,#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 li.MsoNormal,#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman","serif";} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 a:link,#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 a:visited,#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 pre {mso-style-priority:99; mso-style-link:"HTML Preformatted Char"; margin:0cm; margin-bottom:.0001pt; font-size:10.0pt; font-family:"Courier New";} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 tt {mso-style-priority:99; font-family:"Courier New";} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 p.MsoAcetate,#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 li.MsoAcetate,#AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 div.MsoAcetate {mso-style-priority:99; mso-style-link:"Balloon Text Char"; margin:0cm; margin-bottom:.0001pt; font-size:8.0pt; font-family:"Tahoma","sans-serif";} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 span.HTMLPreformattedChar {mso-style-name:"HTML Preformatted Char"; mso-style-priority:99; mso-style-link:"HTML Preformatted"; font-family:Consolas;} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 span.EmailStyle20 {mso-style-type:personal-reply; font-family:"Comic Sans MS"; color:navy; font-weight:normal; font-style:normal; text-decoration:none none;} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 span.BalloonTextChar {mso-style-name:"Balloon Text Char"; mso-style-priority:99; mso-style-link:"Balloon Text"; font-family:"Tahoma","sans-serif";} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif";} @page WordSection1 {size:612.0pt 792.0pt; margin:72.0pt 72.0pt 72.0pt 72.0pt;} #AOLMsgPart_1_85c62e50-8a60-4bf5-aa0b-e551ea5f7865 div.WordSection1 {page:WordSection1;} </STYLE> <div class=WordSection1> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt">The glue was probably just fine. It’s pretty rare to find glue that is bad from the supplier unless it is past its shelf life. And in a factory that doesn’t really happen.</SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt"> </SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt">Most likely in the case of Baldwin hammers is either too much or too little heat on the side cauls, too much or too little moisture in the felt, not enough glue applied or—and this happened more often than anyone wanted to admit—glue applied just before the break (or lunch) bell rings and the worker goes off for a 15 or 30 minute break before sliding the layup in the press.<br> <br> </SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt">ddf    </SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt"> </SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">Delwin D Fandrich</SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"></SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">Piano Design & Fabrication</SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"></SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">6939 Foothill Court SW, </SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">Olympia, Washington 98512 USA</SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">Phone  360.515.0119 — Cell  360.388.6525</SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"></SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"><A href="mailto:del@fandrichpiano.com"><SPAN style="COLOR: blue">del@fandrichpiano.com </SPAN></A></SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">— </SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"><A href="mailto:ddfandrich@gmail.com"><SPAN style="COLOR: blue">ddfandrich@gmail.com</SPAN></A></SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt"></SPAN></div> <div class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 11pt"> </SPAN></div> <div style="MARGIN-LEFT: 36pt" class=MsoNormal><B><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">From:</SPAN></B><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"> <A href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</A> [<A href="mailto:pianotech-bounces@ptg.org?">mailto:pianotech-bounces@ptg.org</A>] <B>On Behalf Of </B>Dale Erwin<br> <B>Sent:</B> Monday, February 13, 2012 10:24 PM<br> <B>To:</B> <A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A><br> <B>Subject:</B> Re: [pianotech] re-gluing loose hammer felt</SPAN></div> <div style="MARGIN-LEFT: 36pt" class=MsoNormal> </div> <div style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm; mso-margin-top-alt: 0cm" class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">It could be  a number of things and some that are hard to put your finger on. It could be glue quality, or age. Felt is hygroscopic and can absorb excess moisture in humid season prior to glue up if not monitored and could contribute to failure<br>  Inadequate amounts of glue applied to the felt and wood, or removal from the press before the glue adequately set. And,... some times the felt is just dang strong. There is an enormous amount of stretch and pull that the felt can exhibit on the joint especially in the low bass after the felt has been tensioned stretched and compressed onto the molding.<br>    I've talked to Ray Negron/Ronsen and sometimes the reasons are unknown. Certain woods are more problematic too. The Weickert felt is so Strong that we've gone to 2 staples in the low bass mon-chords and it really helps<br> Dale</SPAN></div> <div> <div style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm; mso-margin-top-alt: 0cm" class=MsoNormal><B><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt">Dale Erwin RPT-</SPAN></B><B><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt"><br> </SPAN></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt">Mason & Hamlin/Steinway/U.S pianos<br> </SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt">Pre-hung Ronsen hammer sets/Abel parts</SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt"><br> </SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt">Sitka Soundboards & Supplies<br> </SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt"><A href="http://www.erwinspiano.com/" target=_blank>WWW.Erwinspiano.com</A></SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt"><br> </SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt">209-577-8397</SPAN></I></B><B><I><SPAN style="FONT-FAMILY: ; FONT-SIZE: 7.5pt"><br> </SPAN></I></B><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"><br> <TT> </TT></SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"><br> <TT>  </TT></SPAN><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"></SPAN></div> </div> <div style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm; mso-margin-top-alt: 0cm" class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt"> </SPAN></div> <div> <div style="MARGIN-BOTTOM: 12pt; MARGIN-LEFT: 36pt; MARGIN-RIGHT: 0cm; mso-margin-top-alt: 0cm" class=MsoNormal><SPAN style="FONT-FAMILY: ; FONT-SIZE: 10pt">-----Original Message-----<br> From: atrav27 <<A href="mailto:atrav27@att.net">atrav27@att.net</A>><br> To: pianotech <<A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A>><br> Sent: Mon, Feb 13, 2012 6:16 pm<br> Subject: Re: [pianotech] re-gluing loose hammer felt</SPAN></div> <div id=AOLMsgPart_0_765d1ca5-2fe9-496b-85f6-0a9563c62df4><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black"> </SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">----- Original Message ----- </SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">From: "Wally Scherer" <<A href="mailto:afinetune@yahoo.com">afinetune@yahoo.com</A>></SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black"> </SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">It was a Baldwin studio with about 20 hammers half separated. </SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">===========</SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black"> </SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">What are the most likely causes of hammer felt letting go anyway?</SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">Preventable?</SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black"> </SPAN></TT></PRE><PRE style="BACKGROUND: white; MARGIN-LEFT: 36pt"><TT><SPAN style="COLOR: black">-Aron-</SPAN></TT></PRE></div> </div> </div> </div> </div> </font>